tty: move obsolete and broken tty drivers to drivers/staging/tty/

As planned by Arnd Bergmann, this moves the following drivers to the
drivers/staging/tty/ directory where they will be removed after 2.6.41
if no one steps up to claim them.
	epca
	epca
	ip2
	istallion
	riscom8
	serial167
	specialix
	stallion

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 1560 deletions

diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
deleted file mode 100644
index 602643a40b4b..000000000000
--- a/drivers/char/riscom8.c
+++ /dev/null
@@ -1,1560 +0,0 @@
-/*
- *      linux/drivers/char/riscom.c  -- RISCom/8 multiport serial driver.
- *
- *      Copyright (C) 1994-1996  Dmitry Gorodchanin (pgmdsg@ibi.com)
- *
- *      This code is loosely based on the Linux serial driver, written by
- *      Linus Torvalds, Theodore T'so and others. The RISCom/8 card
- *      programming info was obtained from various drivers for other OSes
- *	(FreeBSD, ISC, etc), but no source code from those drivers were
- *	directly included in this driver.
- *
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
- *      This program is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *      GNU General Public License for more details.
- *
- *      You should have received a copy of the GNU General Public License
- *      along with this program; if not, write to the Free Software
- *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	Revision 1.1
- *
- *	ChangeLog:
- *	Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 27-Jun-2001
- *	- get rid of check_region and several cleanups
- */
-
-#include <linux/module.h>
-
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/tty_flip.h>
-#include <linux/spinlock.h>
-#include <linux/device.h>
-
-#include <linux/uaccess.h>
-
-#include "riscom8.h"
-#include "riscom8_reg.h"
-
-/* Am I paranoid or not ? ;-) */
-#define RISCOM_PARANOIA_CHECK
-
-/*
- * Crazy InteliCom/8 boards sometimes have swapped CTS & DSR signals.
- * You can slightly speed up things by #undefing the following option,
- * if you are REALLY sure that your board is correct one.
- */
-
-#define RISCOM_BRAIN_DAMAGED_CTS
-
-/*
- * The following defines are mostly for testing purposes. But if you need
- * some nice reporting in your syslog, you can define them also.
- */
-#undef RC_REPORT_FIFO
-#undef RC_REPORT_OVERRUN
-
-
-#define RISCOM_LEGAL_FLAGS \
-	(ASYNC_HUP_NOTIFY   | ASYNC_SAK          | ASYNC_SPLIT_TERMIOS   | \
-	 ASYNC_SPD_HI       | ASYNC_SPEED_VHI    | ASYNC_SESSION_LOCKOUT | \
-	 ASYNC_PGRP_LOCKOUT | ASYNC_CALLOUT_NOHUP)
-
-static struct tty_driver *riscom_driver;
-
-static DEFINE_SPINLOCK(riscom_lock);
-
-static struct riscom_board rc_board[RC_NBOARD] =  {
-	{
-		.base	= RC_IOBASE1,
-	},
-	{
-		.base	= RC_IOBASE2,
-	},
-	{
-		.base	= RC_IOBASE3,
-	},
-	{
-		.base	= RC_IOBASE4,
-	},
-};
-
-static struct riscom_port rc_port[RC_NBOARD * RC_NPORT];
-
-/* RISCom/8 I/O ports addresses (without address translation) */
-static unsigned short rc_ioport[] =  {
-#if 1
-	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c,
-#else
-	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c, 0x10,
-	0x11, 0x12, 0x18, 0x28, 0x31, 0x32, 0x39, 0x3a, 0x40, 0x41, 0x61, 0x62,
-	0x63, 0x64, 0x6b, 0x70, 0x71, 0x78, 0x7a, 0x7b, 0x7f, 0x100, 0x101
-#endif
-};
-#define RC_NIOPORT	ARRAY_SIZE(rc_ioport)
-
-
-static int rc_paranoia_check(struct riscom_port const *port,
-				    char *name, const char *routine)
-{
-#ifdef RISCOM_PARANOIA_CHECK
-	static const char badmagic[] = KERN_INFO
-		"rc: Warning: bad riscom port magic number for device %s in %s\n";
-	static const char badinfo[] = KERN_INFO
-		"rc: Warning: null riscom port for device %s in %s\n";
-
-	if (!port) {
-		printk(badinfo, name, routine);
-		return 1;
-	}
-	if (port->magic != RISCOM8_MAGIC) {
-		printk(badmagic, name, routine);
-		return 1;
-	}
-#endif
-	return 0;
-}
-
-/*
- *
- *  Service functions for RISCom/8 driver.
- *
- */
-
-/* Get board number from pointer */
-static inline int board_No(struct riscom_board const *bp)
-{
-	return bp - rc_board;
-}
-
-/* Get port number from pointer */
-static inline int port_No(struct riscom_port const *port)
-{
-	return RC_PORT(port - rc_port);
-}
-
-/* Get pointer to board from pointer to port */
-static inline struct riscom_board *port_Board(struct riscom_port const *port)
-{
-	return &rc_board[RC_BOARD(port - rc_port)];
-}
-
-/* Input Byte from CL CD180 register */
-static inline unsigned char rc_in(struct riscom_board const *bp,
-							unsigned short reg)
-{
-	return inb(bp->base + RC_TO_ISA(reg));
-}
-
-/* Output Byte to CL CD180 register */
-static inline void rc_out(struct riscom_board const *bp, unsigned short reg,
-			  unsigned char val)
-{
-	outb(val, bp->base + RC_TO_ISA(reg));
-}
-
-/* Wait for Channel Command Register ready */
-static void rc_wait_CCR(struct riscom_board const *bp)
-{
-	unsigned long delay;
-
-	/* FIXME: need something more descriptive then 100000 :) */
-	for (delay = 100000; delay; delay--)
-		if (!rc_in(bp, CD180_CCR))
-			return;
-
-	printk(KERN_INFO "rc%d: Timeout waiting for CCR.\n", board_No(bp));
-}
-
-/*
- *  RISCom/8 probe functions.
- */
-
-static int rc_request_io_range(struct riscom_board * const bp)
-{
-	int i;
-
-	for (i = 0; i < RC_NIOPORT; i++)
-		if (!request_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1,
-				   "RISCom/8"))  {
-			goto out_release;
-		}
-	return 0;
-out_release:
-	printk(KERN_INFO "rc%d: Skipping probe at 0x%03x. IO address in use.\n",
-			 board_No(bp), bp->base);
-	while (--i >= 0)
-		release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1);
-	return 1;
-}
-
-static void rc_release_io_range(struct riscom_board * const bp)
-{
-	int i;
-
-	for (i = 0; i < RC_NIOPORT; i++)
-		release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1);
-}
-
-/* Reset and setup CD180 chip */
-static void __init rc_init_CD180(struct riscom_board const *bp)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
-	rc_out(bp, RC_CTOUT, 0);     	           /* Clear timeout        */
-	rc_wait_CCR(bp);			   /* Wait for CCR ready   */
-	rc_out(bp, CD180_CCR, CCR_HARDRESET);      /* Reset CD180 chip     */
-	spin_unlock_irqrestore(&riscom_lock, flags);
-	msleep(50);				   /* Delay 0.05 sec       */
-	spin_lock_irqsave(&riscom_lock, flags);
-	rc_out(bp, CD180_GIVR, RC_ID);             /* Set ID for this chip */
-	rc_out(bp, CD180_GICR, 0);                 /* Clear all bits       */
-	rc_out(bp, CD180_PILR1, RC_ACK_MINT);      /* Prio for modem intr  */
-	rc_out(bp, CD180_PILR2, RC_ACK_TINT);      /* Prio for tx intr     */
-	rc_out(bp, CD180_PILR3, RC_ACK_RINT);      /* Prio for rx intr	   */
-
-	/* Setting up prescaler. We need 4 ticks per 1 ms */
-	rc_out(bp, CD180_PPRH, (RC_OSCFREQ/(1000000/RISCOM_TPS)) >> 8);
-	rc_out(bp, CD180_PPRL, (RC_OSCFREQ/(1000000/RISCOM_TPS)) & 0xff);
-
-	spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-/* Main probing routine, also sets irq. */
-static int __init rc_probe(struct riscom_board *bp)
-{
-	unsigned char val1, val2;
-	int irqs = 0;
-	int retries;
-
-	bp->irq = 0;
-
-	if (rc_request_io_range(bp))
-		return 1;
-
-	/* Are the I/O ports here ? */
-	rc_out(bp, CD180_PPRL, 0x5a);
-	outb(0xff, 0x80);
-	val1 = rc_in(bp, CD180_PPRL);
-	rc_out(bp, CD180_PPRL, 0xa5);
-	outb(0x00, 0x80);
-	val2 = rc_in(bp, CD180_PPRL);
-
-	if ((val1 != 0x5a) || (val2 != 0xa5))  {
-		printk(KERN_ERR "rc%d: RISCom/8 Board at 0x%03x not found.\n",
-		       board_No(bp), bp->base);
-		goto out_release;
-	}
-
-	/* It's time to find IRQ for this board */
-	for (retries = 0; retries < 5 && irqs <= 0; retries++) {
-		irqs = probe_irq_on();
-		rc_init_CD180(bp);		 /* Reset CD180 chip	     */
-		rc_out(bp, CD180_CAR, 2);	 /* Select port 2	     */
-		rc_wait_CCR(bp);
-		rc_out(bp, CD180_CCR, CCR_TXEN); /* Enable transmitter	     */
-		rc_out(bp, CD180_IER, IER_TXRDY);/* Enable tx empty intr     */
-		msleep(50);
-		irqs = probe_irq_off(irqs);
-		val1 = rc_in(bp, RC_BSR);	/* Get Board Status reg	     */
-		val2 = rc_in(bp, RC_ACK_TINT);  /* ACK interrupt	     */
-		rc_init_CD180(bp);	       	/* Reset CD180 again	     */
-
-		if ((val1 & RC_BSR_TINT) || (val2 != (RC_ID | GIVR_IT_TX)))  {
-			printk(KERN_ERR "rc%d: RISCom/8 Board at 0x%03x not "
-					"found.\n", board_No(bp), bp->base);
-			goto out_release;
-		}
-	}
-
-	if (irqs <= 0)  {
-		printk(KERN_ERR "rc%d: Can't find IRQ for RISCom/8 board "
-				"at 0x%03x.\n", board_No(bp), bp->base);
-		goto out_release;
-	}
-	bp->irq = irqs;
-	bp->flags |= RC_BOARD_PRESENT;
-
-	printk(KERN_INFO "rc%d: RISCom/8 Rev. %c board detected at "
-			 "0x%03x, IRQ %d.\n",
-	       board_No(bp),
-	       (rc_in(bp, CD180_GFRCR) & 0x0f) + 'A',   /* Board revision */
-	       bp->base, bp->irq);
-
-	return 0;
-out_release:
-	rc_release_io_range(bp);
-	return 1;
-}
-
-/*
- *
- *  Interrupt processing routines.
- *
- */
-
-static struct riscom_port *rc_get_port(struct riscom_board const *bp,
-					       unsigned char const *what)
-{
-	unsigned char channel;
-	struct riscom_port *port;
-
-	channel = rc_in(bp, CD180_GICR) >> GICR_CHAN_OFF;
-	if (channel < CD180_NCH)  {
-		port = &rc_port[board_No(bp) * RC_NPORT + channel];
-		if (port->port.flags & ASYNC_INITIALIZED)
-			return port;
-	}
-	printk(KERN_ERR "rc%d: %s interrupt from invalid port %d\n",
-	       board_No(bp), what, channel);
-	return NULL;
-}
-
-static void rc_receive_exc(struct riscom_board const *bp)
-{
-	struct riscom_port *port;
-	struct tty_struct *tty;
-	unsigned char status;
-	unsigned char ch, flag;
-
-	port = rc_get_port(bp, "Receive");
-	if (port == NULL)
-		return;
-
-	tty = tty_port_tty_get(&port->port);
-
-#ifdef RC_REPORT_OVERRUN
-	status = rc_in(bp, CD180_RCSR);
-	if (status & RCSR_OE)
-		port->overrun++;
-	status &= port->mark_mask;
-#else
-	status = rc_in(bp, CD180_RCSR) & port->mark_mask;
-#endif
-	ch = rc_in(bp, CD180_RDR);
-	if (!status)
-		goto out;
-	if (status & RCSR_TOUT)  {
-		printk(KERN_WARNING "rc%d: port %d: Receiver timeout. "
-				    "Hardware problems ?\n",
-		       board_No(bp), port_No(port));
-		goto out;
-
-	} else if (status & RCSR_BREAK)  {
-		printk(KERN_INFO "rc%d: port %d: Handling break...\n",
-		       board_No(bp), port_No(port));
-		flag = TTY_BREAK;
-		if (tty && (port->port.flags & ASYNC_SAK))
-			do_SAK(tty);
-
-	} else if (status & RCSR_PE)
-		flag = TTY_PARITY;
-
-	else if (status & RCSR_FE)
-		flag = TTY_FRAME;
-
-	else if (status & RCSR_OE)
-		flag = TTY_OVERRUN;
-	else
-		flag = TTY_NORMAL;
-
-	if (tty) {
-		tty_insert_flip_char(tty, ch, flag);
-		tty_flip_buffer_push(tty);
-	}
-out:
-	tty_kref_put(tty);
-}
-
-static void rc_receive(struct riscom_board const *bp)
-{
-	struct riscom_port *port;
-	struct tty_struct *tty;
-	unsigned char count;
-
-	port = rc_get_port(bp, "Receive");
-	if (port == NULL)
-		return;
-
-	tty = tty_port_tty_get(&port->port);
-
-	count = rc_in(bp, CD180_RDCR);
-
-#ifdef RC_REPORT_FIFO
-	port->hits[count > 8 ? 9 : count]++;
-#endif
-
-	while (count--)  {
-		u8 ch = rc_in(bp, CD180_RDR);
-		if (tty)
-			tty_insert_flip_char(tty, ch, TTY_NORMAL);
-	}
-	if (tty) {
-		tty_flip_buffer_push(tty);
-		tty_kref_put(tty);
-	}
-}
-
-static void rc_transmit(struct riscom_board const *bp)
-{
-	struct riscom_port *port;
-	struct tty_struct *tty;
-	unsigned char count;
-
-	port = rc_get_port(bp, "Transmit");
-	if (port == NULL)
-		return;
-
-	tty = tty_port_tty_get(&port->port);
-
-	if (port->IER & IER_TXEMPTY) {
-		/* FIFO drained */
-		rc_out(bp, CD180_CAR, port_No(port));
-		port->IER &= ~IER_TXEMPTY;
-		rc_out(bp, CD180_IER, port->IER);
-		goto out;
-	}
-
-	if ((port->xmit_cnt <= 0 && !port->break_length)
-	    || (tty && (tty->stopped || tty->hw_stopped)))  {
-		rc_out(bp, CD180_CAR, port_No(port));
-		port->IER &= ~IER_TXRDY;
-		rc_out(bp, CD180_IER, port->IER);
-		goto out;
-	}
-
-	if (port->break_length)  {
-		if (port->break_length > 0)  {
-			if (port->COR2 & COR2_ETC)  {
-				rc_out(bp, CD180_TDR, CD180_C_ESC);
-				rc_out(bp, CD180_TDR, CD180_C_SBRK);
-				port->COR2 &= ~COR2_ETC;
-			}
-			count = min_t(int, port->break_length, 0xff);
-			rc_out(bp, CD180_TDR, CD180_C_ESC);
-			rc_out(bp, CD180_TDR, CD180_C_DELAY);
-			rc_out(bp, CD180_TDR, count);
-			port->break_length -= count;
-			if (port->break_length == 0)
-				port->break_length--;
-		} else  {
-			rc_out(bp, CD180_TDR, CD180_C_ESC);
-			rc_out(bp, CD180_TDR, CD180_C_EBRK);
-			rc_out(bp, CD180_COR2, port->COR2);
-			rc_wait_CCR(bp);
-			rc_out(bp, CD180_CCR, CCR_CORCHG2);
-			port->break_length = 0;
-		}
-		goto out;
-	}
-
-	count = CD180_NFIFO;
-	do {
-		rc_out(bp, CD180_TDR, port->port.xmit_buf[port->xmit_tail++]);
-		port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1);
-		if (--port->xmit_cnt <= 0)
-			break;
-	} while (--count > 0);
-
-	if (port->xmit_cnt <= 0)  {
-		rc_out(bp, CD180_CAR, port_No(port));
-		port->IER &= ~IER_TXRDY;
-		rc_out(bp, CD180_IER, port->IER);
-	}
-	if (tty && port->xmit_cnt <= port->wakeup_chars)
-		tty_wakeup(tty);
-out:
-	tty_kref_put(tty);
-}
-
-static void rc_check_modem(struct riscom_board const *bp)
-{
-	struct riscom_port *port;
-	struct tty_struct *tty;
-	unsigned char mcr;
-
-	port = rc_get_port(bp, "Modem");
-	if (port == NULL)
-		return;
-
-	tty = tty_port_tty_get(&port->port);
-
-	mcr = rc_in(bp, CD180_MCR);
-	if (mcr & MCR_CDCHG) {
-		if (rc_in(bp, CD180_MSVR) & MSVR_CD)
-			wake_up_interruptible(&port->port.open_wait);
-		else if (tty)
-			tty_hangup(tty);
-	}
-
-#ifdef RISCOM_BRAIN_DAMAGED_CTS
-	if (mcr & MCR_CTSCHG)  {
-		if (rc_in(bp, CD180_MSVR) & MSVR_CTS)  {
-			port->IER |= IER_TXRDY;
-			if (tty) {
-				tty->hw_stopped = 0;
-				if (port->xmit_cnt <= port->wakeup_chars)
-					tty_wakeup(tty);
-			}
-		} else  {
-			if (tty)
-				tty->hw_stopped = 1;
-			port->IER &= ~IER_TXRDY;
-		}
-		rc_out(bp, CD180_IER, port->IER);
-	}
-	if (mcr & MCR_DSRCHG)  {
-		if (rc_in(bp, CD180_MSVR) & MSVR_DSR)  {
-			port->IER |= IER_TXRDY;
-			if (tty) {
-				tty->hw_stopped = 0;
-				if (port->xmit_cnt <= port->wakeup_chars)
-					tty_wakeup(tty);
-			}
-		} else  {
-			if (tty)
-				tty->hw_stopped = 1;
-			port->IER &= ~IER_TXRDY;
-		}
-		rc_out(bp, CD180_IER, port->IER);
-	}
-#endif /* RISCOM_BRAIN_DAMAGED_CTS */
-
-	/* Clear change bits */
-	rc_out(bp, CD180_MCR, 0);
-	tty_kref_put(tty);
-}
-
-/* The main interrupt processing routine */
-static irqreturn_t rc_interrupt(int dummy, void *dev_id)
-{
-	unsigned char status;
-	unsigned char ack;
-	struct riscom_board *bp = dev_id;
-	unsigned long loop = 0;
-	int handled = 0;
-
-	if (!(bp->flags & RC_BOARD_ACTIVE))
-		return IRQ_NONE;
-
-	while ((++loop < 16) && ((status = ~(rc_in(bp, RC_BSR))) &
-				 (RC_BSR_TOUT | RC_BSR_TINT |
-				  RC_BSR_MINT | RC_BSR_RINT))) {
-		handled = 1;
-		if (status & RC_BSR_TOUT)
-			printk(KERN_WARNING "rc%d: Got timeout. Hardware "
-					    "error?\n", board_No(bp));
-		else if (status & RC_BSR_RINT) {
-			ack = rc_in(bp, RC_ACK_RINT);
-			if (ack == (RC_ID | GIVR_IT_RCV))
-				rc_receive(bp);
-			else if (ack == (RC_ID | GIVR_IT_REXC))
-				rc_receive_exc(bp);
-			else
-				printk(KERN_WARNING "rc%d: Bad receive ack "
-						    "0x%02x.\n",
-				       board_No(bp), ack);
-		} else if (status & RC_BSR_TINT) {
-			ack = rc_in(bp, RC_ACK_TINT);
-			if (ack == (RC_ID | GIVR_IT_TX))
-				rc_transmit(bp);
-			else
-				printk(KERN_WARNING "rc%d: Bad transmit ack "
-						    "0x%02x.\n",
-				       board_No(bp), ack);
-		} else /* if (status & RC_BSR_MINT) */ {
-			ack = rc_in(bp, RC_ACK_MINT);
-			if (ack == (RC_ID | GIVR_IT_MODEM))
-				rc_check_modem(bp);
-			else
-				printk(KERN_WARNING "rc%d: Bad modem ack "
-						    "0x%02x.\n",
-				       board_No(bp), ack);
-		}
-		rc_out(bp, CD180_EOIR, 0);   /* Mark end of interrupt */
-		rc_out(bp, RC_CTOUT, 0);     /* Clear timeout flag    */
-	}
-	return IRQ_RETVAL(handled);
-}
-
-/*
- *  Routines for open & close processing.
- */
-
-/* Called with disabled interrupts */
-static int rc_setup_board(struct riscom_board *bp)
-{
-	int error;
-
-	if (bp->flags & RC_BOARD_ACTIVE)
-		return 0;
-
-	error = request_irq(bp->irq, rc_interrupt, IRQF_DISABLED,
-			    "RISCom/8", bp);
-	if (error)
-		return error;
-
-	rc_out(bp, RC_CTOUT, 0);       		/* Just in case         */
-	bp->DTR = ~0;
-	rc_out(bp, RC_DTR, bp->DTR);	        /* Drop DTR on all ports */
-
-	bp->flags |= RC_BOARD_ACTIVE;
-
-	return 0;
-}
-
-/* Called with disabled interrupts */
-static void rc_shutdown_board(struct riscom_board *bp)
-{
-	if (!(bp->flags & RC_BOARD_ACTIVE))
-		return;
-
-	bp->flags &= ~RC_BOARD_ACTIVE;
-
-	free_irq(bp->irq, NULL);
-
-	bp->DTR = ~0;
-	rc_out(bp, RC_DTR, bp->DTR);	       /* Drop DTR on all ports */
-
-}
-
-/*
- * Setting up port characteristics.
- * Must be called with disabled interrupts
- */
-static void rc_change_speed(struct tty_struct *tty, struct riscom_board *bp,
-						struct riscom_port *port)
-{
-	unsigned long baud;
-	long tmp;
-	unsigned char cor1 = 0, cor3 = 0;
-	unsigned char mcor1 = 0, mcor2 = 0;
-
-	port->IER  = 0;
-	port->COR2 = 0;
-	port->MSVR = MSVR_RTS;
-
-	baud = tty_get_baud_rate(tty);
-
-	/* Select port on the board */
-	rc_out(bp, CD180_CAR, port_No(port));
-
-	if (!baud)  {
-		/* Drop DTR & exit */
-		bp->DTR |= (1u << port_No(port));
-		rc_out(bp, RC_DTR, bp->DTR);
-		return;
-	} else  {
-		/* Set DTR on */
-		bp->DTR &= ~(1u << port_No(port));
-		rc_out(bp, RC_DTR, bp->DTR);
-	}
-
-	/*
-	 * Now we must calculate some speed depended things
-	 */
-
-	/* Set baud rate for port */
-	tmp = (((RC_OSCFREQ + baud/2) / baud +
-		CD180_TPC/2) / CD180_TPC);
-
-	rc_out(bp, CD180_RBPRH, (tmp >> 8) & 0xff);
-	rc_out(bp, CD180_TBPRH, (tmp >> 8) & 0xff);
-	rc_out(bp, CD180_RBPRL, tmp & 0xff);
-	rc_out(bp, CD180_TBPRL, tmp & 0xff);
-
-	baud = (baud + 5) / 10;   /* Estimated CPS */
-
-	/* Two timer ticks seems enough to wakeup something like SLIP driver */
-	tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO;
-	port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ?
-					      SERIAL_XMIT_SIZE - 1 : tmp);
-
-	/* Receiver timeout will be transmission time for 1.5 chars */
-	tmp = (RISCOM_TPS + RISCOM_TPS/2 + baud/2) / baud;
-	tmp = (tmp > 0xff) ? 0xff : tmp;
-	rc_out(bp, CD180_RTPR, tmp);
-
-	switch (C_CSIZE(tty)) {
-	case CS5:
-		cor1 |= COR1_5BITS;
-		break;
-	case CS6:
-		cor1 |= COR1_6BITS;
-		break;
-	case CS7:
-		cor1 |= COR1_7BITS;
-		break;
-	case CS8:
-		cor1 |= COR1_8BITS;
-		break;
-	}
-	if (C_CSTOPB(tty))
-		cor1 |= COR1_2SB;
-
-	cor1 |= COR1_IGNORE;
-	if (C_PARENB(tty)) {
-		cor1 |= COR1_NORMPAR;
-		if (C_PARODD(tty))
-			cor1 |= COR1_ODDP;
-		if (I_INPCK(tty))
-			cor1 &= ~COR1_IGNORE;
-	}
-	/* Set marking of some errors */
-	port->mark_mask = RCSR_OE | RCSR_TOUT;
-	if (I_INPCK(tty))
-		port->mark_mask |= RCSR_FE | RCSR_PE;
-	if (I_BRKINT(tty) || I_PARMRK(tty))
-		port->mark_mask |= RCSR_BREAK;
-	if (I_IGNPAR(tty))
-		port->mark_mask &= ~(RCSR_FE | RCSR_PE);
-	if (I_IGNBRK(tty)) {
-		port->mark_mask &= ~RCSR_BREAK;
-		if (I_IGNPAR(tty))
-			/* Real raw mode. Ignore all */
-			port->mark_mask &= ~RCSR_OE;
-	}
-	/* Enable Hardware Flow Control */
-	if (C_CRTSCTS(tty))  {
-#ifdef RISCOM_BRAIN_DAMAGED_CTS
-		port->IER |= IER_DSR | IER_CTS;
-		mcor1 |= MCOR1_DSRZD | MCOR1_CTSZD;
-		mcor2 |= MCOR2_DSROD | MCOR2_CTSOD;
-		tty->hw_stopped = !(rc_in(bp, CD180_MSVR) &
-						(MSVR_CTS|MSVR_DSR));
-#else
-		port->COR2 |= COR2_CTSAE;
-#endif
-	}
-	/* Enable Software Flow Control. FIXME: I'm not sure about this */
-	/* Some people reported that it works, but I still doubt */
-	if (I_IXON(tty))  {
-		port->COR2 |= COR2_TXIBE;
-		cor3 |= (COR3_FCT | COR3_SCDE);
-		if (I_IXANY(tty))
-			port->COR2 |= COR2_IXM;
-		rc_out(bp, CD180_SCHR1, START_CHAR(tty));
-		rc_out(bp, CD180_SCHR2, STOP_CHAR(tty));
-		rc_out(bp, CD180_SCHR3, START_CHAR(tty));
-		rc_out(bp, CD180_SCHR4, STOP_CHAR(tty));
-	}
-	if (!C_CLOCAL(tty))  {
-		/* Enable CD check */
-		port->IER |= IER_CD;
-		mcor1 |= MCOR1_CDZD;
-		mcor2 |= MCOR2_CDOD;
-	}
-
-	if (C_CREAD(tty))
-		/* Enable receiver */
-		port->IER |= IER_RXD;
-
-	/* Set input FIFO size (1-8 bytes) */
-	cor3 |= RISCOM_RXFIFO;
-	/* Setting up CD180 channel registers */
-	rc_out(bp, CD180_COR1, cor1);
-	rc_out(bp, CD180_COR2, port->COR2);
-	rc_out(bp, CD180_COR3, cor3);
-	/* Make CD180 know about registers change */
-	rc_wait_CCR(bp);
-	rc_out(bp, CD180_CCR, CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3);
-	/* Setting up modem option registers */
-	rc_out(bp, CD180_MCOR1, mcor1);
-	rc_out(bp, CD180_MCOR2, mcor2);
-	/* Enable CD180 transmitter & receiver */
-	rc_wait_CCR(bp);
-	rc_out(bp, CD180_CCR, CCR_TXEN | CCR_RXEN);
-	/* Enable interrupts */
-	rc_out(bp, CD180_IER, port->IER);
-	/* And finally set RTS on */
-	rc_out(bp, CD180_MSVR, port->MSVR);
-}
-
-/* Must be called with interrupts enabled */
-static int rc_activate_port(struct tty_port *port, struct tty_struct *tty)
-{
-	struct riscom_port *rp = container_of(port, struct riscom_port, port);
-	struct riscom_board *bp = port_Board(rp);
-	unsigned long flags;
-
-	if (tty_port_alloc_xmit_buf(port) < 0)
-		return -ENOMEM;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
-	clear_bit(TTY_IO_ERROR, &tty->flags);
-	bp->count++;
-	rp->xmit_cnt = rp->xmit_head = rp->xmit_tail = 0;
-	rc_change_speed(tty, bp, rp);
-	spin_unlock_irqrestore(&riscom_lock, flags);
-	return 0;
-}
-
-/* Must be called with interrupts disabled */
-static void rc_shutdown_port(struct tty_struct *tty,
-			struct riscom_board *bp, struct riscom_port *port)
-{
-#ifdef RC_REPORT_OVERRUN
-	printk(KERN_INFO "rc%d: port %d: Total %ld overruns were detected.\n",
-	       board_No(bp), port_No(port), port->overrun);
-#endif
-#ifdef RC_REPORT_FIFO
-	{
-		int i;
-
-		printk(KERN_INFO "rc%d: port %d: FIFO hits [ ",
-		       board_No(bp), port_No(port));
-		for (i = 0; i < 10; i++)
-			printk("%ld ", port->hits[i]);
-		printk("].\n");
-	}
-#endif
-	tty_port_free_xmit_buf(&port->port);
-
-	/* Select port */
-	rc_out(bp, CD180_CAR, port_No(port));
-	/* Reset port */
-	rc_wait_CCR(bp);
-	rc_out(bp, CD180_CCR, CCR_SOFTRESET);
-	/* Disable all interrupts from this port */
-	port->IER = 0;
-	rc_out(bp, CD180_IER, port->IER);
-
-	set_bit(TTY_IO_ERROR, &tty->flags);
-
-	if (--bp->count < 0)  {
-		printk(KERN_INFO "rc%d: rc_shutdown_port: "
-				 "bad board count: %d\n",
-		       board_No(bp), bp->count);
-		bp->count = 0;
-	}
-	/*
-	 * If this is the last opened port on the board
-	 * shutdown whole board
-	 */
-	if (!bp->count)
-		rc_shutdown_board(bp);
-}
-
-static int carrier_raised(struct tty_port *port)
-{
-	struct riscom_port *p = container_of(port, struct riscom_port, port);
-	struct riscom_board *bp = port_Board(p);
-	unsigned long flags;
-	int CD;
-	
-	spin_lock_irqsave(&riscom_lock, flags);
-	rc_out(bp, CD180_CAR, port_No(p));
-	CD = rc_in(bp, CD180_MSVR) & MSVR_CD;
-	rc_out(bp, CD180_MSVR, MSVR_RTS);
-	bp->DTR &= ~(1u << port_No(p));
-	rc_out(bp, RC_DTR, bp->DTR);
-	spin_unlock_irqrestore(&riscom_lock, flags);
-	return CD;
-}
-
-static void dtr_rts(struct tty_port *port, int onoff)
-{
-	struct riscom_port *p = container_of(port, struct riscom_port, port);
-	struct riscom_board *bp = port_Board(p);
-	unsigned long flags;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-	bp->DTR &= ~(1u << port_No(p));
-	if (onoff == 0)
-		bp->DTR |= (1u << port_No(p));
-	rc_out(bp, RC_DTR, bp->DTR);
-	spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static int rc_open(struct tty_struct *tty, struct file *filp)
-{
-	int board;
-	int error;
-	struct riscom_port *port;
-	struct riscom_board *bp;
-
-	board = RC_BOARD(tty->index);
-	if (board >= RC_NBOARD || !(rc_board[board].flags & RC_BOARD_PRESENT))
-		return -ENODEV;
-
-	bp = &rc_board[board];
-	port = rc_port + board * RC_NPORT + RC_PORT(tty->index);
-	if (rc_paranoia_check(port, tty->name, "rc_open"))
-		return -ENODEV;
-
-	error = rc_setup_board(bp);
-	if (error)
-		return error;
-
-	tty->driver_data = port;
-	return tty_port_open(&port->port, tty, filp);
-}
-
-static void rc_flush_buffer(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, "rc_flush_buffer"))
-		return;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
-	spin_unlock_irqrestore(&riscom_lock, flags);
-
-	tty_wakeup(tty);
-}
-
-static void rc_close_port(struct tty_port *port)
-{
-	unsigned long flags;
-	struct riscom_port *rp = container_of(port, struct riscom_port, port);
-	struct riscom_board *bp = port_Board(rp);
-	unsigned long timeout;
-	
-	/*
-	 * At this point we stop accepting input.  To do this, we
-	 * disable the receive line status interrupts, and tell the
-	 * interrupt driver to stop checking the data ready bit in the
-	 * line status register.
-	 */
-
-	spin_lock_irqsave(&riscom_lock, flags);
-	rp->IER &= ~IER_RXD;
-
-	rp->IER &= ~IER_TXRDY;
-	rp->IER |= IER_TXEMPTY;
-	rc_out(bp, CD180_CAR, port_No(rp));
-	rc_out(bp, CD180_IER, rp->IER);
-	/*
-	 * Before we drop DTR, make sure the UART transmitter
-	 * has completely drained; this is especially
-	 * important if there is a transmit FIFO!
-	 */
-	timeout = jiffies + HZ;
-	while (rp->IER & IER_TXEMPTY) {
-		spin_unlock_irqrestore(&riscom_lock, flags);
-		msleep_interruptible(jiffies_to_msecs(rp->timeout));
-		spin_lock_irqsave(&riscom_lock, flags);
-		if (time_after(jiffies, timeout))
-			break;
-	}
-	rc_shutdown_port(port->tty, bp, rp);
-	spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_close(struct tty_struct *tty, struct file *filp)
-{
-	struct riscom_port *port = tty->driver_data;
-
-	if (!port || rc_paranoia_check(port, tty->name, "close"))
-		return;
-	tty_port_close(&port->port, tty, filp);
-}
-
-static int rc_write(struct tty_struct *tty,
-		    const unsigned char *buf, int count)
-{
-	struct riscom_port *port = tty->driver_data;
-	struct riscom_board *bp;
-	int c, total = 0;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, "rc_write"))
-		return 0;
-
-	bp = port_Board(port);
-
-	while (1) {
-		spin_lock_irqsave(&riscom_lock, flags);
-
-		c = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
-					  SERIAL_XMIT_SIZE - port->xmit_head));
-		if (c <= 0)
-			break;	/* lock continues to be held */
-
-		memcpy(port->port.xmit_buf + port->xmit_head, buf, c);
-		port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
-		port->xmit_cnt += c;
-
-		spin_unlock_irqrestore(&riscom_lock, flags);
-
-		buf += c;
-		count -= c;
-		total += c;
-	}
-
-	if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped &&
-	    !(port->IER & IER_TXRDY)) {
-		port->IER |= IER_TXRDY;
-		rc_out(bp, CD180_CAR, port_No(port));
-		rc_out(bp, CD180_IER, port->IER);
-	}
-
-	spin_unlock_irqrestore(&riscom_lock, flags);
-
-	return total;
-}
-
-static int rc_put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct riscom_port *port = tty->driver_data;
-	unsigned long flags;
-	int ret = 0;
-
-	if (rc_paranoia_check(port, tty->name, "rc_put_char"))
-		return 0;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
-	if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
-		goto out;
-
-	port->port.xmit_buf[port->xmit_head++] = ch;
-	port->xmit_head &= SERIAL_XMIT_SIZE - 1;
-	port->xmit_cnt++;
-	ret = 1;
-
-out:
-	spin_unlock_irqrestore(&riscom_lock, flags);
-	return ret;
-}
-
-static void rc_flush_chars(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, "rc_flush_chars"))
-		return;
-
-	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped)
-		return;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
-	port->IER |= IER_TXRDY;
-	rc_out(port_Board(port), CD180_CAR, port_No(port));
-	rc_out(port_Board(port), CD180_IER, port->IER);
-
-	spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static int rc_write_room(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-	int	ret;
-
-	if (rc_paranoia_check(port, tty->name, "rc_write_room"))
-		return 0;
-
-	ret = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
-	if (ret < 0)
-		ret = 0;
-	return ret;
-}
-
-static int rc_chars_in_buffer(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-
-	if (rc_paranoia_check(port, tty->name, "rc_chars_in_buffer"))
-		return 0;
-
-	return port->xmit_cnt;
-}
-
-static int rc_tiocmget(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-	struct riscom_board *bp;
-	unsigned char status;
-	unsigned int result;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, __func__))
-		return -ENODEV;
-
-	bp = port_Board(port);
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
-	rc_out(bp, CD180_CAR, port_No(port));
-	status = rc_in(bp, CD180_MSVR);
-	result = rc_in(bp, RC_RI) & (1u << port_No(port)) ? 0 : TIOCM_RNG;
-
-	spin_unlock_irqrestore(&riscom_lock, flags);
-
-	result |= ((status & MSVR_RTS) ? TIOCM_RTS : 0)
-		| ((status & MSVR_DTR) ? TIOCM_DTR : 0)
-		| ((status & MSVR_CD)  ? TIOCM_CAR : 0)
-		| ((status & MSVR_DSR) ? TIOCM_DSR : 0)
-		| ((status & MSVR_CTS) ? TIOCM_CTS : 0);
-	return result;
-}
-
-static int rc_tiocmset(struct tty_struct *tty,
-				       unsigned int set, unsigned int clear)
-{
-	struct riscom_port *port = tty->driver_data;
-	unsigned long flags;
-	struct riscom_board *bp;
-
-	if (rc_paranoia_check(port, tty->name, __func__))
-		return -ENODEV;
-
-	bp = port_Board(port);
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
-	if (set & TIOCM_RTS)
-		port->MSVR |= MSVR_RTS;
-	if (set & TIOCM_DTR)
-		bp->DTR &= ~(1u << port_No(port));
-
-	if (clear & TIOCM_RTS)
-		port->MSVR &= ~MSVR_RTS;
-	if (clear & TIOCM_DTR)
-		bp->DTR |= (1u << port_No(port));
-
-	rc_out(bp, CD180_CAR, port_No(port));
-	rc_out(bp, CD180_MSVR, port->MSVR);
-	rc_out(bp, RC_DTR, bp->DTR);
-
-	spin_unlock_irqrestore(&riscom_lock, flags);
-
-	return 0;
-}
-
-static int rc_send_break(struct tty_struct *tty, int length)
-{
-	struct riscom_port *port = tty->driver_data;
-	struct riscom_board *bp = port_Board(port);
-	unsigned long flags;
-
-	if (length == 0 || length == -1)
-		return -EOPNOTSUPP;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
-	port->break_length = RISCOM_TPS / HZ * length;
-	port->COR2 |= COR2_ETC;
-	port->IER  |= IER_TXRDY;
-	rc_out(bp, CD180_CAR, port_No(port));
-	rc_out(bp, CD180_COR2, port->COR2);
-	rc_out(bp, CD180_IER, port->IER);
-	rc_wait_CCR(bp);
-	rc_out(bp, CD180_CCR, CCR_CORCHG2);
-	rc_wait_CCR(bp);
-
-	spin_unlock_irqrestore(&riscom_lock, flags);
-	return 0;
-}
-
-static int rc_set_serial_info(struct tty_struct *tty, struct riscom_port *port,
-				     struct serial_struct __user *newinfo)
-{
-	struct serial_struct tmp;
-	struct riscom_board *bp = port_Board(port);
-	int change_speed;
-
-	if (copy_from_user(&tmp, newinfo, sizeof(tmp)))
-		return -EFAULT;
-
-	mutex_lock(&port->port.mutex);
-	change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
-			(tmp.flags & ASYNC_SPD_MASK));
-
-	if (!capable(CAP_SYS_ADMIN)) {
-		if ((tmp.close_delay != port->port.close_delay) ||
-		    (tmp.closing_wait != port->port.closing_wait) ||
-		    ((tmp.flags & ~ASYNC_USR_MASK) !=
-		     (port->port.flags & ~ASYNC_USR_MASK))) {
-			mutex_unlock(&port->port.mutex);
-			return -EPERM;
-		}
-		port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
-			       (tmp.flags & ASYNC_USR_MASK));
-	} else  {
-		port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
-			       (tmp.flags & ASYNC_FLAGS));
-		port->port.close_delay = tmp.close_delay;
-		port->port.closing_wait = tmp.closing_wait;
-	}
-	if (change_speed)  {
-		unsigned long flags;
-
-		spin_lock_irqsave(&riscom_lock, flags);
-		rc_change_speed(tty, bp, port);
-		spin_unlock_irqrestore(&riscom_lock, flags);
-	}
-	mutex_unlock(&port->port.mutex);
-	return 0;
-}
-
-static int rc_get_serial_info(struct riscom_port *port,
-				     struct serial_struct __user *retinfo)
-{
-	struct serial_struct tmp;
-	struct riscom_board *bp = port_Board(port);
-
-	memset(&tmp, 0, sizeof(tmp));
-	tmp.type = PORT_CIRRUS;
-	tmp.line = port - rc_port;
-
-	mutex_lock(&port->port.mutex);
-	tmp.port = bp->base;
-	tmp.irq  = bp->irq;
-	tmp.flags = port->port.flags;
-	tmp.baud_base = (RC_OSCFREQ + CD180_TPC/2) / CD180_TPC;
-	tmp.close_delay = port->port.close_delay * HZ/100;
-	tmp.closing_wait = port->port.closing_wait * HZ/100;
-	mutex_unlock(&port->port.mutex);
-	tmp.xmit_fifo_size = CD180_NFIFO;
-	return copy_to_user(retinfo, &tmp, sizeof(tmp)) ? -EFAULT : 0;
-}
-
-static int rc_ioctl(struct tty_struct *tty,
-		    unsigned int cmd, unsigned long arg)
-{
-	struct riscom_port *port = tty->driver_data;
-	void __user *argp = (void __user *)arg;
-	int retval;
-
-	if (rc_paranoia_check(port, tty->name, "rc_ioctl"))
-		return -ENODEV;
-
-	switch (cmd) {
-	case TIOCGSERIAL:
-		retval = rc_get_serial_info(port, argp);
-		break;
-	case TIOCSSERIAL:
-		retval = rc_set_serial_info(tty, port, argp);
-		break;
-	default:
-		retval = -ENOIOCTLCMD;
-	}
-	return retval;
-}
-
-static void rc_throttle(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-	struct riscom_board *bp;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, "rc_throttle"))
-		return;
-	bp = port_Board(port);
-
-	spin_lock_irqsave(&riscom_lock, flags);
-	port->MSVR &= ~MSVR_RTS;
-	rc_out(bp, CD180_CAR, port_No(port));
-	if (I_IXOFF(tty)) {
-		rc_wait_CCR(bp);
-		rc_out(bp, CD180_CCR, CCR_SSCH2);
-		rc_wait_CCR(bp);
-	}
-	rc_out(bp, CD180_MSVR, port->MSVR);
-	spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_unthrottle(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-	struct riscom_board *bp;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, "rc_unthrottle"))
-		return;
-	bp = port_Board(port);
-
-	spin_lock_irqsave(&riscom_lock, flags);
-	port->MSVR |= MSVR_RTS;
-	rc_out(bp, CD180_CAR, port_No(port));
-	if (I_IXOFF(tty))  {
-		rc_wait_CCR(bp);
-		rc_out(bp, CD180_CCR, CCR_SSCH1);
-		rc_wait_CCR(bp);
-	}
-	rc_out(bp, CD180_MSVR, port->MSVR);
-	spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_stop(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-	struct riscom_board *bp;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, "rc_stop"))
-		return;
-
-	bp = port_Board(port);
-
-	spin_lock_irqsave(&riscom_lock, flags);
-	port->IER &= ~IER_TXRDY;
-	rc_out(bp, CD180_CAR, port_No(port));
-	rc_out(bp, CD180_IER, port->IER);
-	spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_start(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-	struct riscom_board *bp;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, "rc_start"))
-		return;
-
-	bp = port_Board(port);
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
-	if (port->xmit_cnt && port->port.xmit_buf && !(port->IER & IER_TXRDY)) {
-		port->IER |= IER_TXRDY;
-		rc_out(bp, CD180_CAR, port_No(port));
-		rc_out(bp, CD180_IER, port->IER);
-	}
-	spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_hangup(struct tty_struct *tty)
-{
-	struct riscom_port *port = tty->driver_data;
-
-	if (rc_paranoia_check(port, tty->name, "rc_hangup"))
-		return;
-
-	tty_port_hangup(&port->port);
-}
-
-static void rc_set_termios(struct tty_struct *tty,
-					struct ktermios *old_termios)
-{
-	struct riscom_port *port = tty->driver_data;
-	unsigned long flags;
-
-	if (rc_paranoia_check(port, tty->name, "rc_set_termios"))
-		return;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-	rc_change_speed(tty, port_Board(port), port);
-	spin_unlock_irqrestore(&riscom_lock, flags);
-
-	if ((old_termios->c_cflag & CRTSCTS) &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		rc_start(tty);
-	}
-}
-
-static const struct tty_operations riscom_ops = {
-	.open  = rc_open,
-	.close = rc_close,
-	.write = rc_write,
-	.put_char = rc_put_char,
-	.flush_chars = rc_flush_chars,
-	.write_room = rc_write_room,
-	.chars_in_buffer = rc_chars_in_buffer,
-	.flush_buffer = rc_flush_buffer,
-	.ioctl = rc_ioctl,
-	.throttle = rc_throttle,
-	.unthrottle = rc_unthrottle,
-	.set_termios = rc_set_termios,
-	.stop = rc_stop,
-	.start = rc_start,
-	.hangup = rc_hangup,
-	.tiocmget = rc_tiocmget,
-	.tiocmset = rc_tiocmset,
-	.break_ctl = rc_send_break,
-};
-
-static const struct tty_port_operations riscom_port_ops = {
-	.carrier_raised = carrier_raised,
-	.dtr_rts = dtr_rts,
-	.shutdown = rc_close_port,
-	.activate = rc_activate_port,
-};
-
-
-static int __init rc_init_drivers(void)
-{
-	int error;
-	int i;
-
-	riscom_driver = alloc_tty_driver(RC_NBOARD * RC_NPORT);
-	if (!riscom_driver)
-		return -ENOMEM;
-
-	riscom_driver->owner = THIS_MODULE;
-	riscom_driver->name = "ttyL";
-	riscom_driver->major = RISCOM8_NORMAL_MAJOR;
-	riscom_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	riscom_driver->subtype = SERIAL_TYPE_NORMAL;
-	riscom_driver->init_termios = tty_std_termios;
-	riscom_driver->init_termios.c_cflag =
-		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	riscom_driver->init_termios.c_ispeed = 9600;
-	riscom_driver->init_termios.c_ospeed = 9600;
-	riscom_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_HARDWARE_BREAK;
-	tty_set_operations(riscom_driver, &riscom_ops);
-	error = tty_register_driver(riscom_driver);
-	if (error != 0) {
-		put_tty_driver(riscom_driver);
-		printk(KERN_ERR "rc: Couldn't register RISCom/8 driver, "
-				"error = %d\n", error);
-		return 1;
-	}
-	memset(rc_port, 0, sizeof(rc_port));
-	for (i = 0; i < RC_NPORT * RC_NBOARD; i++)  {
-		tty_port_init(&rc_port[i].port);
-		rc_port[i].port.ops = &riscom_port_ops;
-		rc_port[i].magic = RISCOM8_MAGIC;
-	}
-	return 0;
-}
-
-static void rc_release_drivers(void)
-{
-	tty_unregister_driver(riscom_driver);
-	put_tty_driver(riscom_driver);
-}
-
-#ifndef MODULE
-/*
- * Called at boot time.
- *
- * You can specify IO base for up to RC_NBOARD cards,
- * using line "riscom8=0xiobase1,0xiobase2,.." at LILO prompt.
- * Note that there will be no probing at default
- * addresses in this case.
- *
- */
-static int __init riscom8_setup(char *str)
-{
-	int ints[RC_NBOARD];
-	int i;
-
-	str = get_options(str, ARRAY_SIZE(ints), ints);
-
-	for (i = 0; i < RC_NBOARD; i++) {
-		if (i < ints[0])
-			rc_board[i].base = ints[i+1];
-		else
-			rc_board[i].base = 0;
-	}
-	return 1;
-}
-
-__setup("riscom8=", riscom8_setup);
-#endif
-
-static char banner[] __initdata =
-	KERN_INFO "rc: SDL RISCom/8 card driver v1.1, (c) D.Gorodchanin "
-		  "1994-1996.\n";
-static char no_boards_msg[] __initdata =
-	KERN_INFO "rc: No RISCom/8 boards detected.\n";
-
-/*
- * This routine must be called by kernel at boot time
- */
-static int __init riscom8_init(void)
-{
-	int i;
-	int found = 0;
-
-	printk(banner);
-
-	if (rc_init_drivers())
-		return -EIO;
-
-	for (i = 0; i < RC_NBOARD; i++)
-		if (rc_board[i].base && !rc_probe(&rc_board[i]))
-			found++;
-	if (!found)  {
-		rc_release_drivers();
-		printk(no_boards_msg);
-		return -EIO;
-	}
-	return 0;
-}
-
-#ifdef MODULE
-static int iobase;
-static int iobase1;
-static int iobase2;
-static int iobase3;
-module_param(iobase, int, 0);
-module_param(iobase1, int, 0);
-module_param(iobase2, int, 0);
-module_param(iobase3, int, 0);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CHARDEV_MAJOR(RISCOM8_NORMAL_MAJOR);
-#endif /* MODULE */
-
-/*
- * You can setup up to 4 boards (current value of RC_NBOARD)
- * by specifying "iobase=0xXXX iobase1=0xXXX ..." as insmod parameter.
- *
- */
-static int __init riscom8_init_module(void)
-{
-#ifdef MODULE
-	int i;
-
-	if (iobase || iobase1 || iobase2 || iobase3) {
-		for (i = 0; i < RC_NBOARD; i++)
-			rc_board[i].base = 0;
-	}
-
-	if (iobase)
-		rc_board[0].base = iobase;
-	if (iobase1)
-		rc_board[1].base = iobase1;
-	if (iobase2)
-		rc_board[2].base = iobase2;
-	if (iobase3)
-		rc_board[3].base = iobase3;
-#endif /* MODULE */
-
-	return riscom8_init();
-}
-
-static void __exit riscom8_exit_module(void)
-{
-	int i;
-
-	rc_release_drivers();
-	for (i = 0; i < RC_NBOARD; i++)
-		if (rc_board[i].flags & RC_BOARD_PRESENT)
-			rc_release_io_range(&rc_board[i]);
-
-}
-
-module_init(riscom8_init_module);
-module_exit(riscom8_exit_module);